Zhen Yu

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Schaumburg, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Height scale
- Patent number 7,707,740
- Issue date May 4, 2010
- Weilong Li
- G01 - MEASURING TESTING
Information Patent Grant
Digital height scale
- Patent number D592535
- Issue date May 19, 2009
- Weilong Li
- D10 - Measuring, testing, or signalling instruments

Patents Applicationslast 30 patents

Information Patent Application
Height scale
- Publication number 20090071026
- Publication date Mar 19, 2009
- Weilong Li
- G01 - MEASURING TESTING